I have a big problem and need some fast help. After deploying a .NET application on a server, one of the core windows 2000 server dlls is messed up (msvcrt.dll). I noticed the size is about 20K less than the one on my machine. I have tried to copy over the dll but keep getting the message that the file is in use and cannot be overwritten or renamed. I have tried running a batch program that will copy over the file during boot up - I didn't get any messages but the file size didn't change and the dll was not fixed. I have tried booting up in safe mode and in DOS mode. Still no luck, I get the same message. Does anyone have any suggestions? Maybe a service pack I could use or something. Thank you.